| 摘要 |
PROBLEM TO BE SOLVED: To provide a fuel tank FT capable of accommodating a lot of tank accommodation parts even if an opening area of a tank opening FTb is small. SOLUTION: The fuel tank accommodation device 20 is provided with an inner case 22 connected to the tank opening FTb and having first to third accommodation chambers 22a, 22b, 22c; and the first to third tank accommodation parts 30, 40, 50 accommodated in the accommodation chambers respectively. The opening area of the tank opening FTb is formed larger than a projection area of the respective tank accommodation parts when the tank accommodation parts are arranged in the inner case 22 and is smaller than a total area of a plurality of projection areas of the tank accommodation parts. After the second and third tank accommodation parts 40, 50 are inserted into the first accommodation chamber 22a from the tank opening FTb, they are moved to the second accommodation chamber 22a or the third accommodation chamber 22c to be accommodated.
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